Seed Structure

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•  Drawing internal structure of seeds

When fertilisation occurs, the ovule will develop into a seed (which may be contained within a fruit)

  • The seed will be dispersed from the parental plant and will then germinate, giving rise to a new plant

A typical seed will possess the following features:

  • Testa – an outer seed coat that protects the embryonic plant
  • Micropyle – a small pore in the outer covering of the seed, that allows for the passage of water
  • Cotyledon – contains the food stores for the seed and forms the embryonic leaves
  • Plumule – the embryonic shoot (also called the epicotyl)
  • Radicle – the embryonic root

Internal Structure of a Seed

seed structure